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510 lines
19 KiB
C++
510 lines
19 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
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// Copyright (C) 2017 Edouard Griffiths, F4EXB //
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// //
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// This program is free software; you can redistribute it and/or modify //
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// it under the terms of the GNU General Public License as published by //
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// the Free Software Foundation as version 3 of the License, or //
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// //
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// This program is distributed in the hope that it will be useful, //
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// but WITHOUT ANY WARRANTY; without even the implied warranty of //
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
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// GNU General Public License V3 for more details. //
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// //
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// You should have received a copy of the GNU General Public License //
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// along with this program. If not, see <http://www.gnu.org/licenses/>. //
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///////////////////////////////////////////////////////////////////////////////////
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#include <QMutexLocker>
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#include <QDebug>
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#include <cstddef>
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#include <string.h>
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#include "lime/LimeSuite.h"
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#include "device/devicesourceapi.h"
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#include "device/devicesinkapi.h"
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#include "dsp/dspcommands.h"
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#include "limesdrinput.h"
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#include "limesdrinputthread.h"
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#include "limesdr/devicelimesdrparam.h"
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MESSAGE_CLASS_DEFINITION(LimeSDRInput::MsgConfigureLimeSDR, Message)
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MESSAGE_CLASS_DEFINITION(LimeSDRInput::MsgSetReferenceConfig, Message)
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MESSAGE_CLASS_DEFINITION(LimeSDRInput::MsgReportLimeSDRToGUI, Message)
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LimeSDRInput::LimeSDRInput(DeviceSourceAPI *deviceAPI) :
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m_deviceAPI(deviceAPI),
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m_settings(),
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m_limeSDRInputThread(0),
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m_deviceDescription(),
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m_running(false)
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{
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openDevice();
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}
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LimeSDRInput::~LimeSDRInput()
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{
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if (m_running) stop();
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closeDevice();
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}
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bool LimeSDRInput::openDevice()
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{
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// look for Rx buddies and get reference to common parameters
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// if there is a channel left take the first available
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if (m_deviceAPI->getSourceBuddies().size() > 0) // look source sibling first
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{
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DeviceSourceAPI *sourceBuddy = m_deviceAPI->getSourceBuddies()[0];
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m_deviceShared = *((DeviceLimeSDRShared *) sourceBuddy->getBuddySharedPtr()); // copy shared data
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DeviceLimeSDRParams *deviceParams = m_deviceShared.m_deviceParams; // get device parameters
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if (deviceParams == 0)
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{
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qCritical("LimeSDRInput::openDevice: cannot get device parameters from Rx buddy");
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return false; // the device params should have been created by the buddy
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}
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if (m_deviceAPI->getSourceBuddies().size() == deviceParams->m_nbRxChannels)
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{
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return false; // no more Rx channels available in device
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}
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// look for unused channel number
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char *busyChannels = new char[deviceParams->m_nbRxChannels];
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memset(busyChannels, 0, deviceParams->m_nbRxChannels);
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for (int i = 0; i < m_deviceAPI->getSourceBuddies().size(); i++)
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{
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DeviceSourceAPI *buddy = m_deviceAPI->getSourceBuddies()[i];
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DeviceLimeSDRShared *buddyShared = (DeviceLimeSDRShared *) buddy->getBuddySharedPtr();
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busyChannels[buddyShared->m_channel] = 1;
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}
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std::size_t ch = 0;
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for (;ch < deviceParams->m_nbRxChannels; ch++)
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{
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if (busyChannels[ch] == 0) {
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break; // first available is the good one
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}
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}
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m_deviceShared.m_channel = ch;
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delete[] busyChannels;
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}
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// look for Tx buddies and get reference to common parameters
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// take the first Rx channel
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else if (m_deviceAPI->getSinkBuddies().size() > 0) // then sink
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{
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DeviceSinkAPI *sinkBuddy = m_deviceAPI->getSinkBuddies()[0];
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m_deviceShared = *((DeviceLimeSDRShared *) sinkBuddy->getBuddySharedPtr()); // copy parameters
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if (m_deviceShared.m_deviceParams == 0)
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{
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qCritical("LimeSDRInput::openDevice: cannot get device parameters from Tx buddy");
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return false; // the device params should have been created by the buddy
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}
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m_deviceShared.m_channel = 0; // take first channel
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}
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// There are no buddies then create the first LimeSDR common parameters
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// open the device this will also populate common fields
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// take the first Rx channel
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else
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{
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m_deviceShared.m_deviceParams = new DeviceLimeSDRParams();
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char serial[256];
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strcpy(serial, qPrintable(m_deviceAPI->getSampleSourceSerial()));
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m_deviceShared.m_deviceParams->open(serial);
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m_deviceShared.m_channel = 0; // take first channel
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}
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m_deviceAPI->setBuddySharedPtr(&m_deviceShared); // propagate common parameters to API
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// acquire the channel
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if (LMS_EnableChannel(m_deviceShared.m_deviceParams->getDevice(), LMS_CH_RX, m_deviceShared.m_channel, true) != 0)
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{
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qCritical("LimeSDRInput::openDevice: cannot enable Rx channel %lu", m_deviceShared.m_channel);
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return false;
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}
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return true;
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}
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void LimeSDRInput::closeDevice()
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{
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// release the channel
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if (LMS_EnableChannel(m_deviceShared.m_deviceParams->getDevice(), LMS_CH_RX, m_deviceShared.m_channel, false) != 0)
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{
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qWarning("LimeSDRInput::closeDevice: cannot disable Rx channel %lu", m_deviceShared.m_channel);
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}
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m_deviceShared.m_channel = -1;
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// No buddies so effectively close the device
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if ((m_deviceAPI->getSinkBuddies().size() == 0) && (m_deviceAPI->getSourceBuddies().size() == 0))
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{
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m_deviceShared.m_deviceParams->close();
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delete m_deviceShared.m_deviceParams;
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m_deviceShared.m_deviceParams = 0;
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}
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}
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bool LimeSDRInput::start()
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{
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if (!m_deviceShared.m_deviceParams->getDevice()) {
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return false;
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}
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if (m_running) stop();
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// set up the stream
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m_streamId.channel = m_deviceShared.m_channel; //channel number
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m_streamId.fifoSize = 1024 * 128; //fifo size in samples
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m_streamId.throughputVsLatency = 1.0; //optimize for max throughput
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m_streamId.isTx = false; //RX channel
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m_streamId.dataFmt = lms_stream_t::LMS_FMT_I12; //12-bit integers
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if (LMS_SetupStream(m_deviceShared.m_deviceParams->getDevice(), &m_streamId) != 0)
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{
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qCritical("LimeSDRInput::start: cannot setup the stream on Rx channel %lu", m_deviceShared.m_channel);
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return false;
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}
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// start / stop streaming is done in the thread.
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if ((m_limeSDRInputThread = new LimeSDRInputThread(&m_streamId, &m_sampleFifo)) == 0)
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{
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qFatal("LimeSDRInput::start: out of memory");
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stop();
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return false;
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}
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m_limeSDRInputThread->setLog2Decimation(m_settings.m_log2SoftDecim);
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m_limeSDRInputThread->setFcPos((int) m_settings.m_fcPos);
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m_limeSDRInputThread->startWork();
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applySettings(m_settings, true);
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m_running = true;
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return true;
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}
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void LimeSDRInput::stop()
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{
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if (m_limeSDRInputThread != 0)
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{
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m_limeSDRInputThread->stopWork();
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delete m_limeSDRInputThread;
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m_limeSDRInputThread = 0;
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}
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// destroy the stream
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LMS_DestroyStream(m_deviceShared.m_deviceParams->getDevice(), &m_streamId);
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m_running = false;
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}
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const QString& LimeSDRInput::getDeviceDescription() const
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{
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return m_deviceDescription;
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}
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int LimeSDRInput::getSampleRate() const
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{
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int rate = m_settings.m_devSampleRate;
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return (rate / (1<<(m_settings.m_log2HardDecim + m_settings.m_log2SoftDecim)));
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}
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quint64 LimeSDRInput::getCenterFrequency() const
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{
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return m_settings.m_centerFrequency;
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}
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std::size_t LimeSDRInput::getChannelIndex()
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{
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return m_deviceShared.m_channel;
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}
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void LimeSDRInput::getLORange(float& minF, float& maxF, float& stepF) const
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{
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lms_range_t range = m_deviceShared.m_deviceParams->m_loRangeRx;
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minF = range.min;
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maxF = range.max;
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stepF = range.step;
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}
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void LimeSDRInput::getSRRange(float& minF, float& maxF, float& stepF) const
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{
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lms_range_t range = m_deviceShared.m_deviceParams->m_srRangeRx;
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minF = range.min;
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maxF = range.max;
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stepF = range.step;
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}
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void LimeSDRInput::getLPRange(float& minF, float& maxF, float& stepF) const
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{
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lms_range_t range = m_deviceShared.m_deviceParams->m_lpfRangeRx;
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minF = range.min;
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maxF = range.max;
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stepF = range.step;
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}
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int LimeSDRInput::getLPIndex(float lpfBW) const
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{
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lms_range_t range = m_deviceShared.m_deviceParams->m_lpfRangeRx;
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return (int) ((lpfBW - range.min) / range.step);
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}
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float LimeSDRInput::getLPValue(int index) const
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{
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lms_range_t range = m_deviceShared.m_deviceParams->m_lpfRangeRx;
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return range.min + index * range.step;
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}
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uint32_t LimeSDRInput::getHWLog2Decim() const
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{
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return m_deviceShared.m_deviceParams->m_log2OvSRRx;
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}
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bool LimeSDRInput::handleMessage(const Message& message)
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{
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if (MsgConfigureLimeSDR::match(message))
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{
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MsgConfigureLimeSDR& conf = (MsgConfigureLimeSDR&) message;
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qDebug() << "LimeSDRInput::handleMessage: MsgConfigureLimeSDR";
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if (!applySettings(conf.getSettings(), false))
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{
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qDebug("LimeSDRInput::handleMessage config error");
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}
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return true;
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}
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else if (MsgSetReferenceConfig::match(message))
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{
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MsgSetReferenceConfig& conf = (MsgSetReferenceConfig&) message;
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qDebug() << "LimeSDRInput::handleMessage: MsgSetReferenceLimeSDR";
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m_settings = conf.getSettings();
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return true;
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}
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else
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{
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return false;
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}
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}
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bool LimeSDRInput::applySettings(const LimeSDRInputSettings& settings, bool force)
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{
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bool forwardChangeOwnDSP = false;
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bool forwardChangeRxDSP = false;
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bool forwardChangeAllDSP = false;
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// QMutexLocker mutexLocker(&m_mutex);
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qDebug() << "LimeSDRInput::applySettings";
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if ((m_settings.m_dcBlock != settings.m_dcBlock) || force)
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{
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m_settings.m_dcBlock = settings.m_dcBlock;
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m_deviceAPI->configureCorrections(m_settings.m_dcBlock, m_settings.m_iqCorrection);
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}
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if ((m_settings.m_iqCorrection != settings.m_iqCorrection) || force)
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{
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m_settings.m_iqCorrection = settings.m_iqCorrection;
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m_deviceAPI->configureCorrections(m_settings.m_dcBlock, m_settings.m_iqCorrection);
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}
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if ((m_settings.m_gain != settings.m_gain) || force)
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{
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m_settings.m_gain = settings.m_gain;
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if (m_deviceShared.m_deviceParams->getDevice() != 0)
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{
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if (LMS_SetGaindB(m_deviceShared.m_deviceParams->getDevice(),
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LMS_CH_RX,
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m_deviceShared.m_channel,
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m_settings.m_gain) < 0)
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{
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qDebug("LimeSDRInput::applySettings: LMS_SetGaindB() failed");
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}
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else
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{
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qDebug() << "LimeSDRInput::applySettings: Gain set to " << m_settings.m_gain;
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}
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}
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}
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if ((m_settings.m_devSampleRate != settings.m_devSampleRate)
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|| (m_settings.m_log2HardDecim != settings.m_log2HardDecim) || force)
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{
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forwardChangeRxDSP = m_settings.m_log2HardDecim != settings.m_log2HardDecim;
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forwardChangeAllDSP = m_settings.m_devSampleRate != settings.m_devSampleRate;
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m_settings.m_devSampleRate = settings.m_devSampleRate;
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m_settings.m_log2HardDecim = settings.m_log2HardDecim;
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if (m_deviceShared.m_deviceParams->getDevice() != 0)
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{
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if (LMS_SetSampleRateDir(m_deviceShared.m_deviceParams->getDevice(),
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LMS_CH_RX,
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m_settings.m_devSampleRate,
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1<<m_settings.m_log2HardDecim) < 0)
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{
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qCritical("LimeSDRInput::applySettings: could not set sample rate to %d with oversampling of %d",
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m_settings.m_devSampleRate,
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1<<m_settings.m_log2HardDecim);
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}
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else
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{
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m_deviceShared.m_deviceParams->m_log2OvSRRx = m_settings.m_log2HardDecim;
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m_deviceShared.m_deviceParams->m_sampleRate = m_settings.m_devSampleRate;
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qDebug("LimeSDRInput::applySettings: set sample rate set to %d with oversampling of %d",
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m_settings.m_devSampleRate,
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1<<m_settings.m_log2HardDecim);
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}
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}
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}
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if ((m_settings.m_lpfBW != settings.m_lpfBW) || force)
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{
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m_settings.m_lpfBW = settings.m_lpfBW;
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if (m_deviceShared.m_deviceParams->getDevice() != 0)
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{
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if (LMS_SetLPF(m_deviceShared.m_deviceParams->getDevice(),
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LMS_CH_RX,
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m_deviceShared.m_channel,
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m_settings.m_lpfBW))
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{
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qCritical("LimeSDRInput::applySettings: could not set LPF to %f Hz", m_settings.m_lpfBW);
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}
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else
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{
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qDebug("LimeSDRInput::applySettings: LPF set to %f Hz", m_settings.m_lpfBW);
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}
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}
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}
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if ((m_settings.m_lpfFIRBW != settings.m_lpfFIRBW) ||
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(m_settings.m_lpfFIREnable != settings.m_lpfFIREnable) || force)
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{
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m_settings.m_lpfFIRBW = settings.m_lpfFIRBW;
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m_settings.m_lpfFIREnable = settings.m_lpfFIREnable;
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if (m_deviceShared.m_deviceParams->getDevice() != 0)
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{
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if (LMS_SetGFIRLPF(m_deviceShared.m_deviceParams->getDevice(),
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LMS_CH_RX,
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m_deviceShared.m_channel,
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m_settings.m_lpfFIREnable,
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m_settings.m_lpfFIRBW))
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{
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qCritical("LimeSDRInput::applySettings: could %s and set LPF FIR to %f Hz",
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m_settings.m_lpfFIREnable ? "enable" : "disable",
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m_settings.m_lpfFIRBW);
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}
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else
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{
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qDebug("LimeSDRInput::applySettings: %sd and set LPF FIR to %f Hz",
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m_settings.m_lpfFIREnable ? "enable" : "disable",
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m_settings.m_lpfFIRBW);
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}
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}
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}
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if ((m_settings.m_log2SoftDecim != settings.m_log2SoftDecim) || force)
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{
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m_settings.m_log2SoftDecim = settings.m_log2SoftDecim;
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forwardChangeOwnDSP = true;
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if (m_limeSDRInputThread != 0)
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{
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m_limeSDRInputThread->setLog2Decimation(m_settings.m_log2SoftDecim);
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qDebug() << "LimeSDRInput::applySettings: set soft decimation to " << (1<<m_settings.m_log2SoftDecim);
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}
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}
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if ((m_settings.m_centerFrequency != settings.m_centerFrequency) || force)
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{
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forwardChangeRxDSP = true;
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if (m_deviceShared.m_deviceParams->getDevice() != NULL)
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{
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if (LMS_SetLOFrequency(m_deviceShared.m_deviceParams->getDevice(),
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LMS_CH_RX,
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m_deviceShared.m_channel, // same for both channels anyway but switches antenna port automatically
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m_settings.m_centerFrequency ) != 0)
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{
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qDebug("LimeSDRInput::applySettings: LMS_SetLOFrequency(%lu) failed", m_settings.m_centerFrequency);
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}
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}
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}
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if (forwardChangeAllDSP)
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{
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const std::vector<DeviceSourceAPI*>& sourceBuddies = m_deviceAPI->getSourceBuddies();
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std::vector<DeviceSourceAPI*>::const_iterator itSource = sourceBuddies.begin();
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int sampleRate = m_settings.m_devSampleRate/(1<<(m_settings.m_log2HardDecim + m_settings.m_log2SoftDecim));
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for (; itSource != sourceBuddies.end(); ++itSource)
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{
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DSPSignalNotification *notif = new DSPSignalNotification(sampleRate, m_settings.m_centerFrequency);
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(*itSource)->getDeviceInputMessageQueue()->push(notif);
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MsgReportLimeSDRToGUI *report = MsgReportLimeSDRToGUI::create(
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m_settings.m_centerFrequency,
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m_settings.m_devSampleRate,
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m_settings.m_log2HardDecim);
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(*itSource)->getDeviceInputMessageQueue()->push(report);
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}
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const std::vector<DeviceSinkAPI*>& sinkBuddies = m_deviceAPI->getSinkBuddies();
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std::vector<DeviceSinkAPI*>::const_iterator itSink = sinkBuddies.begin();
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for (; itSink != sinkBuddies.end(); ++itSink)
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{
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DSPSignalNotification *notif = new DSPSignalNotification(sampleRate, m_settings.m_centerFrequency);
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(*itSink)->getDeviceInputMessageQueue()->push(notif);
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MsgReportLimeSDRToGUI *report = MsgReportLimeSDRToGUI::create(
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m_settings.m_centerFrequency,
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m_settings.m_devSampleRate,
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m_settings.m_log2HardDecim);
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(*itSink)->getDeviceInputMessageQueue()->push(report);
|
|
}
|
|
}
|
|
else if (forwardChangeRxDSP)
|
|
{
|
|
const std::vector<DeviceSourceAPI*>& sourceBuddies = m_deviceAPI->getSourceBuddies();
|
|
std::vector<DeviceSourceAPI*>::const_iterator it = sourceBuddies.begin();
|
|
int sampleRate = m_settings.m_devSampleRate/(1<<(m_settings.m_log2HardDecim + m_settings.m_log2SoftDecim));
|
|
|
|
for (; it != sourceBuddies.end(); ++it)
|
|
{
|
|
DSPSignalNotification *notif = new DSPSignalNotification(sampleRate, m_settings.m_centerFrequency);
|
|
(*it)->getDeviceInputMessageQueue()->push(notif);
|
|
MsgReportLimeSDRToGUI *report = MsgReportLimeSDRToGUI::create(
|
|
m_settings.m_centerFrequency,
|
|
m_settings.m_devSampleRate,
|
|
m_settings.m_log2HardDecim);
|
|
(*it)->getDeviceInputMessageQueue()->push(report);
|
|
}
|
|
}
|
|
else if (forwardChangeOwnDSP)
|
|
{
|
|
int sampleRate = m_settings.m_devSampleRate/(1<<(m_settings.m_log2HardDecim + m_settings.m_log2SoftDecim));
|
|
DSPSignalNotification *notif = new DSPSignalNotification(sampleRate, m_settings.m_centerFrequency);
|
|
m_deviceAPI->getDeviceInputMessageQueue()->push(notif);
|
|
}
|
|
|
|
qDebug() << "LimeSDRInput::applySettings: center freq: " << m_settings.m_centerFrequency << " Hz"
|
|
<< " device sample rate: " << m_settings.m_devSampleRate << "S/s"
|
|
<< " Actual sample rate: " << m_settings.m_devSampleRate/(1<<m_settings.m_log2SoftDecim) << "S/s";
|
|
|
|
return true;
|
|
}
|
|
|